云南省德宏州梁河县第一中学高中英语 Unit4 Astronomy the science of the Stars练习题 新人教版必修3(1).doc

云南省德宏州梁河县第一中学高中英语 unit4 astronomy the science of the stars练习题 新人教版必修3一：用适当的连词填空； 1. the fact is _ i have lost his address.2. go and get your coat. its _ you left it.3. i wonder _ you are getting on with your studies.4. the question is _ can complete the difficult task.5. he got caught in the heavy traffic. that was _ he was late.6. _ leaves the room last ought to turn off the light.7. _ you have done might do harm to others.1. that 2. where 3. how 4. who 5. why 6. whoever 7. what 二、unit4 词汇串记our geography teacher says the earth is only one of the planets of the giant . other planets, life on the earth, but lifes origin is still a . different and cultures have separate ideas. the teacher says it may be divided into four stages.the first stage is about how the universe began. a widely accepted can explain it. after the “big bang” , began to form and combine to create stars and other bodies. the second stage is how the earth formed. between 4.5 and 3.8 years ago, clouds and dust in space settled into a solid . the earth became that it often exploded. the and water appeared. water is a matter for life to exist on the earth. it also dissolves gases and acids. the third stage is about plants and animals appearance. at first, plants in the water appeared and . they produced , which encourages animals in the water to exist. later, green plants on the land caused animals on the land to appear. they first and became babies. later, mammals babies directly. the last stage is that humans became the most important animals on the earth. we put too much carbon dioxide in the to cause global warming. we must how things will go and make laws to the earth becoming too hot. we have taken measures, we will succeed . so lets and work together. solar systems; unlike; exists; puzzle; religions; theory; broke out; atoms; billion; existed; globe; violent; oxygen; fundamental; harmful; multiplied; oxygen; laid eggs; gave birth to; atmosphere; watch out; prevent from; now that; in time; cheer up三.句子翻译 1既然我们已经完成了设计，就该由公司来进行建设了。_2由于强大的引力，飞船被拖得离卫星很近。_3老师幽默的谈话让我们很振奋，班里的气氛放松了下来。_4别打扰她。她昨晚刚生了一个男孩，现在还在睡觉。_5大部分证据都被毁了。因此，不可能证明这种药物是有害的。_1. the spaceship was pulled close to the satellite by its strong gravity.2. the atmosphere in the classroom relaxed after the teachers humorous talk cheered us up.3. dont disturb her.she gave birth to a boy last night and now she is asleep.4. now that we have finished the design，the company，in its turn，will do the construction.5. most of the evidence are destroyed.thus，its impossible to prove that the drug is harmful.四. 阅读理解edmund halley was an english scientist who lived over 200 years ago. he studied the observations of comets(彗星)which other scientists had made. the orbit of one particular comet was a very difficult mathematical problem. he could not figure it out. neither could other scientists who dealt with such problems.however, halley had a friend named isaac newton, who was a brilliant mathematician. newton thought he had already worked out that problem, but he could not find the papers on which he had done it. he told halley that the orbit of a comet had the shape of an ellipse(椭圆形).now halley set to work. he figured out(解决，计算出)the orbits of some of the comets that had been observed by scientists. he made a surprising discovery. the comets that had appeared in the years 1531, 1607, and 1682 all had the same orbit. yet their appearance had been 75 to 76 years apart.this seemed very strange to halley. three different comets followed the same orbit. the more halley thought about it, the ore his thought that there had been three different comets as people thought. he decided that they had simply seen the same comet three times. the comet had gone away and had come back again.it was an astonishing idea! halley felt certain though to make a prediction(预言)of what would happen in the future. he decided that this would appear in the year 1758. there were 53 years to go before halleys prediction could be tested. in 1758 the comet appeared in the sky. halley did not see it, for he had died some years before. ever since then that comet had been called halleys comet, in his honor.5 edmund halley figured out the orbit of _.a. some different comets appearing several timesb. the same comet appearing at different timesc. three different comets appearing at the same timed. several comets appearing at the same time6. halley made his discovery _.a. by doing experimentsb. by means of his own careful observationc. by using the working of other scientistsd. by chance7. halley made a surprising, but correct prediction in the year_.a. 1704b. 1705 c. 1706d. 17078. this passage in general is about _.a. halley and other scientistsb. the orbit of a cometc. newton and halleyd. ha